package day14;

/**
 * @author joker
 * @date 2022/4/24 0024 - 11:43
 */
public interface Person {
    void m1();
    String m2(String str);
    default void m3(){
        System.out.println("m3");
    }
    static void m4(){
        System.out.println("m4");
    }
}
